Return-path: Received: from nbd.name ([46.4.11.11]:59488 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752303Ab3CBUXo (ORCPT ); Sat, 2 Mar 2013 15:23:44 -0500 Message-ID: <51325FC2.4060604@openwrt.org> (sfid-20130302_212347_937116_0C4ABEAB) Date: Sat, 02 Mar 2013 21:23:30 +0100 From: Felix Fietkau MIME-Version: 1.0 To: Sujith Manoharan CC: Adrian Chadd , "Luis R. Rodriguez" , Paul Stewart , linux-wireless Subject: Re: [RFC] ath9k: remove ath9k_rate_control References: <1360329197-72631-1-git-send-email-nbd@openwrt.org> <20757.1753.863278.858198@gargle.gargle.HOWL> <511508A6.8020104@openwrt.org> <51152D9E.1040106@openwrt.org> <20130227192030.GW12537@pogo> <512ECE01.8010102@openwrt.org> <20782.54505.239733.82364@gargle.gargle.HOWL> <512EDDC5.7020901@openwrt.org> <20784.48093.263373.125536@gargle.gargle.HOWL> In-Reply-To: <20784.48093.263373.125536@gargle.gargle.HOWL> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On 2013-03-01 3:31 PM, Sujith Manoharan wrote: > Felix Fietkau wrote: >> What was the distance and what was the rate used? > > A distance of about a meter between the AP and STA. > > AP: DB120 - running an internal build. > STA: WB222 - wireless-testing HEAD. > Signal is about -43 dBm. > Channel 40, HT40- > > I've attached sample runs with minstrel_ht and ath9k-rc. With minstrel_ht, > the numbers fluctuate between 180 and 190 Mbps and the average throughput > varies each time (185, 186 etc.). With ath9k-rc, it's 195+ always. I just sent some minstrel_ht improvements to linux-wireless@ Please test if they fix the throughput delta in your setup. In my tests they visibly reduce the number of unnecessary fallbacks to lower rates. Thanks, - Felix